The book about John Nash ("Beautiful Mind'") mentioned that he wrote
"Edward G. Nilges, a programmer who worked in Princeton University?s
computer center from 1987 to 1992, recalled that Nash ?acted frightened and
silent? at first. In Nilges?s last year or two in Princeton, however, Nash
was asking him questions about the Internet and about programs he was
working on. Nilges was impressed: ?Nash?s computer programs were
Has anybody seen them?
Are they available somewhere for downloading?
At 12:56 AM 7/31/2021, Randy Dawson via cctalk wrote:
>As some here know, I collect some dusty deck fortran graphics. We have MOVIE.BYU up and running! (Thanks Douglas Taylor and Emanuel Steibler).
Once I was in the business of making 3D file format translators,
and I still have code that runs under Windows that can read
and write Movie.BYU format.
Was there a UNIBUS storage system that used a cassette player as the
storage device (like an old Panasonic or RadioShack cassette player),
rigged to send receive signals via a serial card connection. I.e. the
system would have one serial card for the terminal and another serial card
on a different port for the cassette player? It might have to load as if
it was a high-speed papertape but it in theory would work.
Hi all --
Recently picked up a DH11-AD and now I just need to track down an
appropriate bulkhead panel to go with it. Originally this would have been
the H317-B, I'm not sure if there were others that are directly compatible,
but if anyone has one lying around drop me a line!
Charles Dickman <chd at chdickman.com> wrote:
> There are indications in the KDJ11-B processor spec on bitsavers that
> the M8190 could be used in a multiprocessor configuration. For
> example, bit 10 of the Maintenance Register (17 777 750) is labeled
> "Multiprocessor Slave" and indicates that the bus arbitrator is
> disabled. There is also section 6.6, "Cache Multi-Processor Hooks",
> that describes cache features that allow multiprocessor operation.
>Would it be as simple as connecting to 11/83 qbus together? And adding
> the proper software.
> Anybody ever heard of such a thing?
Such a system was put together and tested at DEC with the RSX group
(who did the PDP-11/74 multiprocessor work). I'm told that while it
worked, it wasn't terrible successful, and the project was abandoned.
I was given a gift of one of the CPU modules that was used in the test
and I might still have it around here. I can't recall for certain,
but I think the module required some ECOs to make it work in a
The person to ask about this, Brian McCarthy, is unfortunately no
longer with us. :-(
I ran into a YouTube video, that it is 5 years old, titled "Ultrix-11
3.1 on an emulated PDP-11/73" and I found it very interesting.
It shows installation of Ultrix-11 under SIMH.? The fellow steps through
the installation process and appears to be quite knowable.
I wanted to replicate it but couldn't locate the *.tap file used in the
video that was an image of the bootable TK50 distribution.
Bitsavers and tuhs.org have Ultrix-11 files, but not the bootable tape
Anyone know where the tape image is located?
I have a CDC 9427H drive ( https://i.imgur.com/Wn87MRb.jpg ) that is
absolutely desparate for a new home. It's quite likely over 80lbs, so
shipping would be problematic. I'm in Graham, WA.
It's free, it's lonely, and it's desparate for your gentle touch. Please
won't you think of the disk drives?
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby. Geeks collect hobbies.
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://scarlet.deltasoft.com - Get it _today_!
Is it still useful to linearize PDFs?
I've been scanning and PDFing manuals for 16 years, and I've been
linearizing them regularly. My understanding is that this made them
accessible on a page-by-page basis in Web browsers without requiring a
complete file download first. But given the increase in typical bandwidth
in 16 years, I wonder if this is still useful. It is an extra step, and it
does make the files somewhat larger.
Recommendations? Does linearizing confer any advantage locally once the
entire file is downloaded?
you're invited to the Update computer club public lecture series
When: 2021-08-14, 19:00 CEST
The Whirlwind I
The Whirlwind was a computer of the first generation built at the
servomechanisms lab at MIT. It was the first computer designed to be a
highly reliable part of a system, and to be controlled in real time,
rather than be a programmable calculator for scientific research. Its
interactive nature directly started a tradition of computer engineering
at MIT which includes the TX-0, TX-2 and DEC's PDP line of
minicomputers. Its role in a simulated air defense system led to the
development of the AN/FSQ-7 computer, the center piece of the SAGE
system. In my talk I will give the historical context in which Whirlwind
was designed and built, explain its architecture and block diagrams, go
into how it was built and how it evolved over its lifetime, and of
course show some simple demos in my emulator. Those who want to stick
around for a bit longer are encouraged to join me in a little hands-on
hacking session where we look at some original code, but also write our
own to get a feeling for what programming the Whirlwind is like.
Angelo Papenhoff (Humboldt University of Berlin)
The lecture is free and open to everyone.
Upcoming: 2021-09-11, 19:00: The evolution of TECO and EMACS ? hands-on
demo. Lars Brinkhoff (ICtech)
Hope to see you there,
On Monday, August 16, 2021 at 14:20, Wayne Sudol wrote:
> Out of curiosity, is there a reason you do not use Acrobat for
> creating pdfs?
Primarily because I have not purchased a license for Acrobat. Also, when I
started scanning manuals ten years ago, Al Kossow recommended tumble, which
worked well. And with source available, I've been able to extend it to
give me finer control over some aspects of PDF production.